Massive gastrointestinal hemorrhage.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D004630:Emergencies; D005260:Female; D005743:Gastrectomy; D006471:Gastrointestinal Hemorrhage / Q000150:complications / Q000175:diagnosis / Q000401:mortality / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000601:surgery; D011708:Pylorus / Q000601:surgery; D014628:Vagotomy